Well with a username like that, I daresay you have a custom frame - I've heard Viner's are awesome.

As someone that is currently finding out more about geometry than any sane person should have to in order to resolve some fit issues, I can see the appeal. Currently, the Trek Madone looks to be the best fit for me, but if I'm honest, I'm not a fan of the Trek brand. Great bikes I'm sure, but I'd rather have a Cervelo or something, so there's a question of whether I can find the same position on something else without loads of headset spacers etc.

Thus, if you've got the cash spare to buy something that is the best of both worlds, go for it.

In theory, there is no difference between theory and practice, but in practice...